Ultralow cross talk arrayed waveguide grating integrated with tunable microring filter array

doi:10.3788/COL202422.031303

Ultralow cross talk arrayed waveguide grating integrated with tunable microring filter array

2024-01-01

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DOI：10.3788/COL202422.031303

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The silicon-based arrayed waveguide grating (AWG) is widely used due to its compact footprint and its compatibility with the mature CMOS process. However, except for AWGs with ridged waveguides of a few micrometers of cross section, any small process error will cause a large phase deviation in other AWGs, resulting in an increasing cross talk. In this paper, an ultralow cross talk AWG via a tunable microring resonator (MRR) filter is demonstrated on the SOI platform. The measured insertion loss and minimum adjacent cross talk of the designed AWG are approximately 3.2 and -45.1 dB, respectively. Compared with conventional AWG, its cross talk is greatly reduced.

Keywords:

SOI platform

arrayed waveguide grating

cross talk

microring filter array

thermo-optic effect.

Ultralow cross talk arrayed waveguide grating integrated with tunable microring filter array

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